13222100 has 36 divisors (see below), whose sum is σ = 30206400. Its totient is φ = 5009760.

The previous prime is 13222093. The next prime is 13222103. The reversal of 13222100 is 122231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1580 + ... + 5379.

Almost surely, 2^13222100 is an apocalyptic number.

13222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13222100 is an abundant number, since it is smaller than the sum of its proper divisors (16984300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13222100 is a wasteful number, since it uses less digits than its factorization.

13222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6992 (or 6985 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 13222100 is about 3636.2205653673. The cubic root of 13222100 is about 236.4649695503.

Adding to 13222100 its reverse (122231), we get a palindrome (13344331).

The spelling of 13222100 in words is "thirteen million, two hundred twenty-two thousand, one hundred".